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Finding the Fourth Proportional to 25,368.73, 38,043.71 and 8,724.17

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Solution

The fourth proportional to 25,368.73, 38,043.71 and 8,724.17 is: 13,083.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,368.73 : 38,043.71 = 8,724.17 : x
  2. Step 2: Convert to fraction form
    25,368.73/38,043.71 = 8,724.17/x
  3. Step 3: Cross multiply
    25,368.73x = 38,043.71 × 8,724.17
  4. Step 4: Simplify right side
    25,368.73x = 331,899,877.67
  5. Step 5: Solve for x
    x = 331,899,877.67/25,368.73
  6. Step 6: Final answer
    x = 13,083.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.